This should be practically free for all of your materials and should take less than a minute if you try.
If built right it should stay lit for seven minutes!!!!
Step 1: Gather Materials
-Duct Tape (The Best Stuff on Earth)
-Dryer Lint (Can be collected from a dryer, not a lot needed maybe 1/4 cup)
-Char Cloth (5 or 6 1" by 1" square pieces of char cloth) Don't know how to make char cloth? Watch this Youtube video or view this Instructable.
-Regular Cotton (Note that this can't ignite by just a spark)
The duct tape will make a large enough flame, the lint will keep the fire going, and the char cloth makes the flame last long.
Step 2: Duct Tape
Step 3: Lint and Duct Tape
Shove lint into roll of duct tape.
Step 4: Char Cloth
Step 5: Light It on Fire
If you have a flame source, then light a little bit of the duct tape.
Step 6: You're Finished
By the way, this one stayed lit for seven minutes, well long enough to start a fire.